code: def preprocess_for_exporter(info, exporter_name):
      if exporter_name in PREPROCESS_DICT:
          preprocess_list = PREPROCESS_DICT[exporter_name]
      else:
          return
  
      for func in info._network.function:
          if func.type in preprocess_list:
              preprocessor = preprocess_list[func.type]
              if callable(preprocessor):
                  preprocessor(info, func)
  
file_path: nnabla/python/src/nnabla/utils/converter/nnablart/utils.py
imports: import collections
  from functools import partial
  import nnabla.utils.converter
  import numpy
label_desc: Use image node_id 6 for calling a global function with example usage: preprocess_for_exporter(info, exporter_name) without return types